[PP-2-2] ポスターセッション　コアタイム　グループ（2）

[PP-2-2-04] Estimation of the origin of nitrate ions in the inflow river and lake water of Lake Kawaguchi based on nitrogen and oxygen stable isotope analysis

*Shinya Yamamoto¹, Yuya Hasegawa², Takashi Nakamura³ (1. Mount Fuji Research Institute, Yamanashi Prefectural Government, 2. Yamanashi Institute for Public Health and Environment, 3. Interdisciplinary Center for River Basin Environment, University of Yamanashi)

Keywords:Lake, Eutrophication, Nitrate ion, Stable isotope